Cách sử dụng
The expression "on special" typically refers to a sale or promotion where a product or service is being offered at a discounted price or with special features. For example, a store might have a sign that says "Apples on special: 3 for $1" which means that you can buy three apples for one dollar. It's a way for stores or businesses to attract customers by offering a good deal. As an English learner, you may encounter this expression when shopping or reading advertisements.